400	avg_yield1
160	avg_yield2
3000	avg_yield3
7	avg_yield4
7	avg_yield5
7	avg_yield6
7	avg_yield7

540	high_yield1
180	high_yield2 
4000	high_yield3
8	high_yield4 
8	high_yield5
8	high_yield6 
8	high_yield7

380	low_yield1
110	low_yield2
1600	low_yield3
4	low_yield4
4	low_yield5
4	low_yield6
4	low_yield7

800	avg_residue1
6300	avg_residue2
620	avg_residue3
1500	avg_residue4
1500	avg_residue5
1500	avg_residue6
1500	avg_residue7

20	users estimate of observed_wind_erosion
7	past WEQ_erosion_estimate